An example of deceptive techniques that pushed the technological boundaries of their time was uncovered in 1996 during a U.S. Senate race between John Warner, the incumbent, and his opponent Mark Warner.
In Virginia, the Republican candidate for governor, Mark L. Earley, has narrowed the gap in the polls recently, in part by accusing his Democratic opponent, Mark R. Warner, of favoring tax increases.
Mr. Williams lost the Republican primary race to his opponent, Mark Dettman.
His Democratic opponent, Mark Warner, a technology tycoon, has never held elective office.
Mr. Grimm's current Democratic opponent, Mark Murphy, has criticized what he has called Mr. Grimm's lax ethics.
Then again his opponent, Mark Waller, a former Air Force officer whose views were not so conservative as Bruce's, was a mere novice.
But he is also ensuring that his Republican opponent, Mark Neumann, can outspend him; he puts the money gap at "three to one, perhaps more".
A one-term U.S. congressman for the state's fourth district, he's not much of a speechifier, relying primarily on linking his opponent, Mark Pryor, to Obama.
Last week he was trailing his Republican opponent, Mark Foley, an incumbent Florida congressman, by 13 points (according to his own poll), and getting pounded by brutal attack ads.
His corruption trial will begin in the throes of the general election.Mr Giannoulias's Republican opponent, Mark Kirk, has more experience (five terms in Congress) and more cash (as of January 13th Mr Kirk had $4.9m, compared with Mr Giannoulias's $3m).
Perhaps the most pivotal and unexpectedly close race was in Buffalo, a heavily Democratic district, where Senator Antoine M. Thompson, a Democrat, was 547 votes behind his opponent, Mark Grisanti, a Republican.
